Pro usar iste additivos, tu debera discargar Firefox.

Aperir session
Icone del additivo

Recensiones de Tree Style Tab

Tree Style Tab per Piro (piro_or)

4,5 Stellas de 5
5
1655
4
269
3
102
2
63
1
94
Recension de Hans Hansen
per Hans Hansen, prije 8 godina
I would love to try this add-on, but Firefox 56.0 refuses to install it.
Why does this add-on require version 57?